Ken Cook
Reports for April 2024 for the Copley sites. (Averages refer to 1991-2020)
Cloudy and wet again, cool by day.
(Differences from 1991-2020 averages in brackets)
Copley Lead Mill site 218metres asl
Temperature °C (09Z-09Z)
Mean maximum 10.9 (-0.9) High 17.5 on 30th, Low 7.3 on 1st
Mean minimum 2.8 (0.5) Low -2.7 on 27th, High 8.8 on 12th
Mean screen 6.9 (-0.2)
Mean 30cm earth 8.1 (1.0)
Air frost 5 (-4)
Days snow lying 50% 09Z, 0 (-1) snow on ground 1
Max depth 09Z 0cm on 0
River Gaunless data (Copley Lead Mill Environment Agency monitoring site 09Z daily readings)
Mean level 0.20m high 0.44m on 3rd, low 0.12m on 27th (normal 0.00m to 0.60m)
Mean river temperature 09Z 7.0, high 9.6 on 6th, low 5.0 on 20th
Copley Met O site 253metres asl
Temperature °C (09Z-09Z)
Mean maximum 10.6 (-0.6) High 16.9 on 30th, Low 7.3 on 25th
Mean minimum 3.5 (0.7) Low -2.0 on 27th, High 9.4 on 6th
Mean screen 7.1 (0.1)
Mean grass minimum 0.9 (1.8) Low -9.9 on 27th
Mean concrete minimum 3.4 (0.9) Low -2.2 on 27th
Mean 30cm earth 8.4 (0.5)
Mean 100cm earth 7.9 (0.7)
Air frost 3 (-3) 12 hours
Ground frost 11 (-6)
Concrete frost 6 (-1)
Precipitation mm (09Z-09Z)
Total 89.1 (156%) High 14.9 on 2nd
Days 0.2mm 21 (7)
Days 1.0mm 17 (8)
Hail 2 (-1)
Thunder 0 (-1)
Snow cm
Days falling 4 (-1)
Days lying 50% 09Z, 0 (-1) snow on ground 1
Fresh falls 09Z 0cm (-3cm)
Max depth 09Z 0cm on 0
Sunshine hr (R&D electronic recorder) Sunshine hr (Campbell Stokes)
Total 93.6 (61%) 124.4 (67%)
Max day 10.6 on 30th 11.1 on 17th
Average daily 3.1 (22% of the possible 14.1hr / day) 4.1 (29% possible)
Days no sun 4 4
Fog (Vis <1km 09Z), 1 (-1)
Pressure mb (mean sea level)
Average 09Z 1010.2 (-3.6)
High 1033.3 on 31st
Low 990.8 on 6th
Wind KT (Davis recorder)
Mean NNW 8.8 (1.0) High gust 44 on 7th
Gale days 0 (0)
Ken Cook, Copley, Teesdale / Weardale watershed